Are my teeth crooked enough to get invisalign?

This is what my teeth look like:

http://i990.photobucket.com/albums/af26/xoxofagoxox/9DB40B17-1EDB-4D64-B9AA-C7CD6FAA772D-1515-000000E5FF953606.jpg

I don't wanna spend a lot of money on something that I may not even need. Opinions are appreciated :)
4 answers 4